Weekend Sale Siemens MBK175A – 175A 2 Pole Main Breaker Kit

Operating at 120/240VAC, the MBK175A is a 175A main breaker kit engineered to deliver dependable thermal-magnetic protection for residential load centers. This two-pole unit safeguards entire electrical panels from severe overloads. Designed for broad compatibility, this breaker mounts into Siemens EQ, Ultimate, and PL series load centers. It serves as the exact replacement for the discontinued MBK175, ensuring a proper fit for older and modern panelboards. It features a 22 kAIC rating.